Adding keyless entry to a 2000 Sirion

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Hello,

I purchased a keyless entry kit to install in my 2000 1.3 Sirion gtvi which has factory central locking (not keyless).

However I'm not quite sure how to connect the keyless kit and would appreciate any assistance.

I have located four wires in the drivers kick panel and two in the passenger side. I am assuming that the two additional wires in the driver side is what triggers the lock and unlock.

When I disconnect the driver lock from the wiring loom and probe the additional green wire in the driver side, I am able to unlock the doors. However locking remains a mystery.

Any help would be appreciated.